package qi;

/**
 * Created by mc on 2016/7/27.
 */
interface Some74{
    void doSome74();
}
class SomeImpl74 implements Some74{
    public void doSome74(){
        System.out.println("做一些事");
    }

}
public class si
{
    public static void main(String[] arges)
    {
        Some74 s = new SomeImpl74();
        s.doSome74();
    }
}
